Scraper and hoist apparatus.



J. L. ALLEY.

SCRAPER AND HOIST APPARATUS.

APPLICATION FILED JAN. 11, 1913.

"1,1,9? Patented Oct. 26, 1915.

2 SHEETS-SHEET I.

\ q M J W A J. L. ALLEY.

SCRAPER AND HOIST APPARATUS.

APPLICATION FILED JAN-17.19l3.

Patented Oct. 26, 1915.

2 SHEETS-SHEET 2.

W/T/l/ESS5S COLUMBIA PLANOGRAPH 4:0,, WASHINGTON, D. c.

barren s ra rns PATFNTFF1QE JESSE L. ALLEY, OF INDIANAPOLIS, INDIANA.

SCRAFER AND HOIS'I ATPPARATUS.

Application filed January 17, 1913.

To all whom it may concern Be it known that I, JEssE L. ALLEY, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Scraper and Hoist Apparatus, of which the following is a specification.

This invention relates to a drag-line scraper bucket apparatus by which gravel may be removed from the beds of streams without necessitating persons Working in the water; and the object of the invention is to provide means whereby gravel of considerable depth can be removed from the beds of streams with facility and despatch.

A further object of the invention is to provide a simple and efiicient apparatus which will accomplish the work of many persons in scraping, digging and hoisting gravel from the beds of streams and delivering same to any desired point on the banks.

I accomplish the above objects of the invention by means of the apparatus shown in the accompanying drawings, forming a part hereof, in which Figure 1 is a view illustrating my scraping and hoisting apparatus in operative position. Fig. 2 is a side elevation of the catch block for temporarily holding the scraper bucket during the dumping operation. Fig. 3 is a side elevation of the scraper bucket, on a considerably enlarged scale, the full lines showing the position occupied by the bucket as itis drawn along the track line, and the dotted lines showing the position of said bucket when the sameis dumping. Fig. 1 is a perspective view of the scraper bucket.

Referring to the drawings, the construction contemplates the use of a mast 10 situated at' a convenient point alongthe bank of the stream from which the gravel is to be removed. Built alongside of this mast and at some distance above the ground is usually a platform 11 upon which the gravel is dumped from the scraper bucket and as the pile of gravel increases on said platform it is allowed to run over the sides, and by means of a series of suitably arranged screens, not shown, the gravel may be separated into different grades of fineness for commercial purposes. This invention, however, has to do only with the means for removing the gravel initially from the bottom Specification of Letters Patent.

Patented Get. 26, 1915..

Serial No. 742,593.

of the stream and depositing same on the banks thereof.

The mast 10 provides an anchor for bolding the sheave blocks 15 and 16 which support the tension-line 17; The sheave block 15 provides a means for anchoring a trackline 20, which extends across to the other bank of the stream where it is suitably anchored to a post 21. This track-line forms a trackv upon which the scraper bucket moves.

As shown in Figs. 3 and i, the bucket comprises a rectangularly shaped boX 22, open at one end and on top.

23 represents a hanger which extends longitudinally and above the center of the bucket,and said hanger is provided in each end with a roller 2a which runs on the trackline 20 for suspending the scraper bucket 22. The hanger 23 is pivotallymounted in the brackets 26 secured to the scraper bucket, so that the forward end of the bucket may be lowered with respect to said hanger, as in dumping the bucket. l/Vhen the scraper bucket 22 is allowed to move outward along the track-line 20 to secure a fresh load of gravel the tension-line 17 is allowed to play out so that the track-line 20 and the scraperbucket may be lowered to the bed of the stream. While the bucket is moving away from the mast 1.0 and the tensiondine 17 is playing out, the draw-line 30, by which the scraper bucket 22 is drawn forward, is also allowed to play out so as not to interfere with the outward travel of said scraper bucket. When the bucket has reached the bottom of the stream at the desired location power is applied to the draw-line 30 which causes the scraper bucket to move along the bed of the stream until said bucket is filled with gravel. At this point power is applied to the tension-line 17 so to draw taut the trackdine 20, to make a positive course of travel for the scraper bucket 22., and at the same time the draw-line 30 is being reeled in in order that thescraper bucket and its load can be moved along the track-line 20 in the direction of the mast 10. It might here be stated that the tension-line 17 and the drawline 30 run over the sheaves .30 and 30 on the mast 10 and thence to a suitable hoisting engine of the double drum type whereby both lines may be simultaneously or alternately played in or out as necessity may require, and it will be observed that with the use of this apparatus for removing gravel @downwardly and around a from the bed of a stream it only requires the services of one person Whose duty relates only to the operation of the hoisting engine. when the loaded scraper bucket is being moved along the track-line 20, the forward end of the scraper bucket is held up in its proper position, in order that the contents ofthe bucket may not beprematurely discharged, by means of a bucket actuating cable 35 which is secured to the draw-line 30 somewhat in advance of the scraper bucket 22. The cable 35 extends over a sheave'36 mounted in the hanger 23, and thence passes sheave 37 mounted on the tie-beam 38 on the front end of the scraper bucket 22, and thence upward and is anchored to the hanger 23. By this arrangement, when power is appliedto the draw-line 30, as when the scraper bucket is being moved forward, tension will also be applied to the cable35 whereby the forward end of the scraper bucket will be elevated and maintained in proper position. When the bucket arrives at the point where the contents are to be discharged, the scraper bucket will be held in position on the trackline 20 by means of a catch-block 40. See

I Fig. 2.

' The forward end of the hanger 23 is provided with an upwardly extended arm 41 and the forward end of this arm is formed into a hook 42, adapted to ride over the head of the catch-block 40 and be hooked over the rear wall by said block. See Fig. 3. The arm 41 is also provided with a sheave 43 which rolls along the track-line 20 and sup ports the arm 41 when the bucket movesalong the line 20. When the scraper bucket is held fast by means of the hook 42 and catch-block 40, as shown in Fig. 3, the bucket is ready to be dumped, and is accomplished by allowing the draw-line 30 to play out which, at the same time, allows the cable 35 to become slack, and move over the sheaves 36 and 37 thereby allowing the forward end of the bucket to move downwardly into the position shown bydotted lines in Fig. 3. When the contents of the bucket has been discharged power is again applied to the draw-line 30 which tightens the cable 35, the latter elevating the forward end of the .bucket back to its normal position, and when the draw-line 30 and cable 35 are drawn taut the car is suddenly moved forward so that the sheave 43 is moved upon the head of the catch-block 40, thereby disengaging the hook 42 from said head, and then by gradually allowing the draw-line 30 to play out the hook 42 will clear the head of the catchblock 40, allowing the bucket 22 to move along the track-line 20 toward the stream for a new supply of gravel, after which the operation, as heretofore described, is repeated.

Having thus fully described my said invention, what I desire to secure by Letters Patent, is-

1. In an excavating apparatus, the combination, with a track line, of a movable carrier thereon, a bucket pivoted at one end to the end of said carrier, an arm pivoted to the end of the carrier opposite that supporting the bucket and provided with a hook, a catch block on the track line for engaging said hook for holding the bucket when discharging its contents, a sheave carried by said arm for contacting said catch block to disengage said arm, a draw line for controlling the movement of said bucket along said track line, and a cable connected to and operated by said draw line for controlling the movement of the bucket on its pivot.

2. In an excavating apparatus, the combination, with a track line, of a movable carrier thereon, a draw line for controlling the movement of said carrier along said track line, a bucket pivoted at one end to the end of the carrier, an arm pivoted at the forward end of said carrier and provided with a hook, a catch block on said track line for engaging said hook and holding the carrier while the bucket is discharging its contents, means carried by said arm for disengaging said hook from the catch block when the draw line is tightened, and a cable Copies-of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

